Height and width of rays in Scots pine stems

Kärkkäinen, Matti

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Silva Fennica vol. 10 no. 2 article id 4938 | 1976 | Article

Matti Kärkkäinen

Mäntyrunkojen ydinsäteiden korkeus ja leveys.

Kärkkäinen M. (1976). Mäntyrunkojen ydinsäteiden korkeus ja leveys. Silva Fennica vol. 10 no. 2 article id 4938. https://doi.org/10.14214/sf.a14783

English title: Height and width of rays in Scots pine stems

Abstract

In this study the width and height of 1,588 uniseriate and 454 fusiform rays were measured from tangential sections of four Scots pine (Pinus sylvestris L.) trunks. The samples represented various height levels and distances from the pith. The average width of the uniseriate rays was 19.7 μm and that of the fusiform rays, 51.9 μm. The average height of the uniseriate rays was 215.7 μm and that of the fusiform rays 406.2 μm. Due to this difference in height, it may be possible to develop an automatic system for distinguishing between uniseriate end fusiform rays on the basis of their height.

The PDF includes a summary in English.

Original keywords
mänty; ydinsäteet; pihkatiehyet; puuaine; puun rakenne

English keywords
Pinus sylvestris; Scots pine; xylem; fusiform rays; uniseriate rays; rays

Published in 1976

Available at https://doi.org/10.14214/sf.a14783 | Download PDF

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